Home / 57,519.90-86,181.30-45,710.10

Finding the Fourth Proportional to 57,519.90, 86,181.30 and 45,710.10

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Solution

The fourth proportional to 57,519.90, 86,181.30 and 45,710.10 is: 68,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,519.90 : 86,181.30 = 45,710.10 : x
  2. Step 2: Convert to fraction form
    57,519.90/86,181.30 = 45,710.10/x
  3. Step 3: Cross multiply
    57,519.90x = 86,181.30 × 45,710.10
  4. Step 4: Simplify right side
    57,519.90x = 3,939,355,841.13
  5. Step 5: Solve for x
    x = 3,939,355,841.13/57,519.90
  6. Step 6: Final answer
    x = 68,486.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.